Abstract
Chikungunya virus (CHIKV) is a mosquito-transmitted alphavirus that causes chikungunya fever and has infected millions of people mainly in developing countries. The associated disease is characterized by rash, high fever and severe arthritis that can persist for years. CHIKV has adapted to Aedes albopictus, which also inhabits temperate regions, including Europe and the United States of America and might cause new, large outbreaks there. No treatment or licensed CHIKV vaccine exists. Epigallocatechin-3-gallate (EGCG), the major component of green tea, has, among other beneficial properties, antiviral activities. Therefore, we examined if EGCG has antiviral activity against CHIKV. EGCG inhibited CHIKV infection in vitro, blocked entry of CHIKV Env-pseudotyped lentiviral vectors and inhibited CHIKV attachment to target cells. Thus EGCG might be used as a lead structure to develop more effective antiviral drugs.
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